Display screen or portion thereof with a group of graphical user interfaces



The FIGURE is a front view of a display screen or portion thereof with a group of graphical user interfaces showing the claimed design.

The bracket shown in the FIGURE indicates a group. The elements of the group are arranged relatively on the drawing sheet for the convenience of illustration, and the placement of each element relative to another, or to the drawing sheet, forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a group of graphical user interfaces, as shown and described. 